Thank you 51 ashton,
I called the Federal Signal Corporation and discussed with a nice lady about the Models 660 & 861, both are reverse only, right rear mount, 87dB and 105dB. A little pricy, add to that the mounting bracket and shipping looks like I will need to save some $$$.
They also have a tech support department and are willing to assist me with proper fitting for my tow-truck. According to Jerry, (the lady I spoke to), Federal Signal Corporation has been in business for 100 years. 100 years! She said that tech support may assist with proper documentation for the rotating beacon that I am missing as well.
Thanks for the great resource.
Dale
